Let's get this math done. We have 419 and we're going to multiply it by 101. This is the same as taking 419 and adding it to itself 101 times.
Step 1: 0 + 419 = 419
Step 2: 419 + 419 = 838
Step 3: 838 + 419 = 1257
Step 4: 1257 + 419 = 1676
Step 5: 1676 + 419 = 2095
Step 6: 2095 + 419 = 2514
Step 7: 2514 + 419 = 2933
Step 8: 2933 + 419 = 3352
Step 9: 3352 + 419 = 3771
Step 10: 3771 + 419 = 4190
Step 11: 4190 + 419 = 4609
Step 12: 4609 + 419 = 5028
Step 13: 5028 + 419 = 5447
Step 14: 5447 + 419 = 5866
Step 15: 5866 + 419 = 6285
Step 16: 6285 + 419 = 6704
Step 17: 6704 + 419 = 7123
Step 18: 7123 + 419 = 7542
Step 19: 7542 + 419 = 7961
Step 20: 7961 + 419 = 8380
Step 21: 8380 + 419 = 8799
Step 22: 8799 + 419 = 9218
Step 23: 9218 + 419 = 9637
Step 24: 9637 + 419 = 10056
Step 25: 10056 + 419 = 10475
Step 26: 10475 + 419 = 10894
Step 27: 10894 + 419 = 11313
Step 28: 11313 + 419 = 11732
Step 29: 11732 + 419 = 12151
Step 30: 12151 + 419 = 12570
Step 31: 12570 + 419 = 12989
Step 32: 12989 + 419 = 13408
Step 33: 13408 + 419 = 13827
Step 34: 13827 + 419 = 14246
Step 35: 14246 + 419 = 14665
Step 36: 14665 + 419 = 15084
Step 37: 15084 + 419 = 15503
Step 38: 15503 + 419 = 15922
Step 39: 15922 + 419 = 16341
Step 40: 16341 + 419 = 16760
Step 41: 16760 + 419 = 17179
Step 42: 17179 + 419 = 17598
Step 43: 17598 + 419 = 18017
Step 44: 18017 + 419 = 18436
Step 45: 18436 + 419 = 18855
Step 46: 18855 + 419 = 19274
Step 47: 19274 + 419 = 19693
Step 48: 19693 + 419 = 20112
Step 49: 20112 + 419 = 20531
Step 50: 20531 + 419 = 20950
Step 51: 20950 + 419 = 21369
Step 52: 21369 + 419 = 21788
Step 53: 21788 + 419 = 22207
Step 54: 22207 + 419 = 22626
Step 55: 22626 + 419 = 23045
Step 56: 23045 + 419 = 23464
Step 57: 23464 + 419 = 23883
Step 58: 23883 + 419 = 24302
Step 59: 24302 + 419 = 24721
Step 60: 24721 + 419 = 25140
Step 61: 25140 + 419 = 25559
Step 62: 25559 + 419 = 25978
Step 63: 25978 + 419 = 26397
Step 64: 26397 + 419 = 26816
Step 65: 26816 + 419 = 27235
Step 66: 27235 + 419 = 27654
Step 67: 27654 + 419 = 28073
Step 68: 28073 + 419 = 28492
Step 69: 28492 + 419 = 28911
Step 70: 28911 + 419 = 29330
Step 71: 29330 + 419 = 29749
Step 72: 29749 + 419 = 30168
Step 73: 30168 + 419 = 30587
Step 74: 30587 + 419 = 31006
Step 75: 31006 + 419 = 31425
Step 76: 31425 + 419 = 31844
Step 77: 31844 + 419 = 32263
Step 78: 32263 + 419 = 32682
Step 79: 32682 + 419 = 33101
Step 80: 33101 + 419 = 33520
Step 81: 33520 + 419 = 33939
Step 82: 33939 + 419 = 34358
Step 83: 34358 + 419 = 34777
Step 84: 34777 + 419 = 35196
Step 85: 35196 + 419 = 35615
Step 86: 35615 + 419 = 36034
Step 87: 36034 + 419 = 36453
Step 88: 36453 + 419 = 36872
Step 89: 36872 + 419 = 37291
Step 90: 37291 + 419 = 37710
Step 91: 37710 + 419 = 38129
Step 92: 38129 + 419 = 38548
Step 93: 38548 + 419 = 38967
Step 94: 38967 + 419 = 39386
Step 95: 39386 + 419 = 39805
Step 96: 39805 + 419 = 40224
Step 97: 40224 + 419 = 40643
Step 98: 40643 + 419 = 41062
Step 99: 41062 + 419 = 41481
Step 100: 41481 + 419 = 41900
Step 101: 41900 + 419 = 42319

So, 419*101 = 42319